Survey: 20% of publishers/developers are planning to focus on Windows Phone 7

In a new survey conducted by Millennial Media of 500 publishers, developers and advertisers, nearly 20% are planning to focus their work on Windows Phone 7 in the next year. The iPhone garners 30% interest right now but Android is expected to close in that gap by hitting 29% next year.

To put into perspective, Windows Phone 7 achieving 20% interest seems to be a definitive sign that developers and publishers are taking it seriously, that they have confidence in the platform and that Microsoft is really throwing some weight behind it.